Argus Radar - INSTALLATION AND SETTINGS
988-10187-004 1.4
1.2.5 Radar controls and display
If the control panel is a separate unit, the functionality of the radar controls
should be available for the mariner at all workstations where a radar display is
available.
The orientation of the display unit should be such that the user is looking
ahead. The lookout view should not be obscured and the ambient light should
cause minimum degradation on the display screen in accordance with
MSC/Circ.982.
WARNING
ONLY ELECTRONIC POSITION FIXING SYSTEMS (EPFS) APPROVED
IN ACCORDANCE WITH THE REQUIREMENTS OF THE IMO IN
RESOLUTION MSC.112(73) SHALL BE CONNECTED TO THE ARGUS
RADAR CONSOLE.
WARNING
ACCORDING THE IMO STANDARD, A GROUND SPEED SENSOR IS
REQUIRED TO BE CONNECTED TO THE ARGUS CONSOLE.
IT IS ALLOWED TO USE AN ELECTRONIC POSITION FIXING SYSTEM
(EPFS) APPROVED IN ACCORDANCE WITH THE REQUIREMENTS OF
THE IMO IN RESOLUTION MSC.112(73) OR AN ALTERNATIVE TWO
DIMENSIONAL GROUND STABILISING SDME IN COMPLIANCE WITH
IMO RESOLUTION MSC.96(72)
WARNING
LONG TRANSMISSION LINES CAN AFFECT THE RADAR
PERFORMANCE. THE SYSTEM HAS BEEN TESTED WITH 20 M
LENGTH FROM TRANSCEIVER TO ANTENNA PEDESTAL, CONSIDER
THAT TRANSMITTED/RECEIVED POWER ARE HALVED FOR EVERY
10 MS ADDED (EX: +20 M = -6DB SIGNAL/NOISE).
CLEARLY THIS AFFECTS DETECTION FOR FAR TARGETS AND FOR
SMALL/LOW REFLECTIVITY ONES LIKE SAILBOATS.
HIGHEST MAST POSITION IS GOOD FOR LONG RANGE DETECTION
BUT IT AFFECTS HEAVILY THE DETECTION IN SEA CLUTTER. FOR
OPTIMAL DETECTION IN SEA CLUTTER SUGGESTED ANTENNA
HEIGHT FROM SEA LEVEL IS APPROX. 20 M.
USUALLY THE CONTRADICTORY SPECIFICATIONS ARE SOLVED
WITH INSTALLATION OF MORE THAN ONE ANTENNA, FOR EXAMPLE
ONE AT 30 M FOR LONG RANGE DETECTION AND ONE AT 20 M FOR
OPTIMAL DETECTION OF LOW INTENSITY ECHOES IN SEA
CLUTTER.
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